Electrical insulator



June 23, 1925. 1,543,508

G. F. NEAL ELECTRICAL INSULATOR Filed Aug. 15; 1923 C111 um for Wi/Wei.

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Patented June 23, 1925.

UNITED STATES GEORGE F. NEAL, F OAXLYN, NEW JERSEY.-

ELECTRICAL INSULATOB.

Application led Augult 15, 1923. Berial Nb. 657,557.

To all whom it may concern.'

Be it known that I, Gnoiion F. NEAL, citizen of the United States,residing at Oakl in the county of Camden and State of ew Jersey, haveinvented certain new and useful Improvements in Electrical Insulators,of which the following is a specification.

This invention relates to certain new and useful improvements inelectrical insulators l0 and has particular reference to a protected orencased insulator, especially useful foi' supporting the antenna wiresof radio apparatus.

The primary object of the invention is to provide an insulator, throughthe use of which messages may be transmitted and received when it israining, withoutI any fear of losing any of the current supplied to theantenna because ofthe insulator becoming wet and allowing the current topass over it to the ground.

A further object of the invention is to provide an insulator of theabove kind and In the drawings, wherein like reference 4 charactersdesignate corresponding parts throughout the several views:

Figure 1 1s a substantially central longitudinal sectional view of aninsulator con- 'structed in accordance with the present invention.

Figure 2 is an end elevational view of thc device shown in Figure 1,

Figure 3 is a transverse sectional view, taken upon line 3-3 ofFigure 1. f

5 Referring more in detail to the drawings.

the presentI invention includes an outer cylindrical 'insulator memberor shell preferably tapered smaller toward its end and composed of anintermediate, 'section 5 and end sections 6 joined in end to endrelation by means of a air of supporting and spacing discs 7. T e discs7 are provided with a peripheral groove about which the antenna wireinaybe wrapped, and are also formed in theirA opposite faces with marginalannular grooves 8 for snug reception of the adjacent en ds of thesections 5 and 6 as shown in. Figure 1, the end section 6 being retainedin place by means of radial screws 9 passing therethrough and throughthe discs 7. l u A 'Ihe insulator further embodies an inner solidinsulator member or core composed of an intermediate section 10 andsimilar end sections 11, which are held in connected end to end relationand in spaced relation at opposlte sides of the discs 7 by means ofscrews 12 having their heads embedded in the end sections 11 and passingthrough central openings 13 in the discs 7, said screws bein threadedinto threaded sockets 10 p rovided in the ends of the intermediatesri-.rtion 10 of the inner insulating member. The inner insulator memberis of relatively small diameter, so as to lie in spaced relation to theouter insulator .member throughout, and is positioned concentric withthe outer insulator member by means of the conf struct-ion abovedescribed.

In order to facilitate suspension of the insulator, suitable eye members14 are embedded in the outer ends of the sections 11 of the innerinsulator member for connection to suspension wires 15 that extend intothe open? ends of the outer insulator member.

The two insulator members are provided with" external peripheralcorrugations delining ribs 16 which facilitate draining of water fromsaid members and such water as may find its way into the open ends ofthe sections 6 may readily drain fromthe latter through openings 17provided in the bottoms of the latter adjacent the discs 7 'at the outersides of said discs.

From the above description, it is believed thaty the construction andmanner of use. as well as the advantages of the invention willibereadily understood and appreciated by those skilled in the art.

Minor changes may be made without departing from the spirit and scope ofthe invention as claimed.

What I claim as new is:

1. In an insulator of the class described, an outer tubular insulatingshell, .an inner U0 insulator core rigidly connected to said shell anddisposed concentrically within and s aced therefrom means upon the endsof t e core for. facilitatin suspension of the insulator, said shell ancore each embod ing central and a pair of end sections, dis s arrangedbetween said sections, the inner or intermediate section of the corehavin threaded sockets formed in the ends thereo screws havin theirheads embedded in the inner ends o the 'end sections of said core, saidscrews assing through openings in said disks andJ being threaded intothe sockets in the ends of the intermediate section of the core forrigidly connectin the sections of the latter together, said isks havingannular marginal grooves in their outer faces and the inner end of eachen d section of said shell extending into the adjacent coactin groove.

2. n an insulator of the class described, an outer tubular insulatingshell, an inner insulator core rigidly connected to said shell and disosed concentrically within and s aced t erefrom, means upon the ends oft e core for facilitatin suspension of the insulator, said shell an coreeach embodying central and a pair of end sections, disks arrangedbetween said sections, the inner or intermediate section of the corehaving threaded sockets formed in the ends thereof, screws having theirheads embedded in the inner ends of the end sections of said core, saidscrews assing through openings in said disks and) being threaded intothe sockets in the ends of the intermediate section of the core forrigidly connectin the sections of the latter together, said isks havingannular marginal grooves in their outer faces and the inner end of eachend section of said shell extending into the adjacent coacting groove,and means passing through the inner ends of the end sections of said(sihelll for rigidly attaching the latter to said is s.

3. In an insulator of the class described, an outer tubular insulatingshell, an inner insulator core rigidly connected to said shell anddisposed concentrically n within and spaced t erefrom, means upon theends of t e core for facilitatin suspension of the insulator, said shellan core each embod ing central and a pair of end sections, dis sarranged between said sections, the inner or intermediate section of thecore havin threaded sockets formed in the ends thereo screws havin theirheads embedded in the inner ends o the end sections of said core, saidscrews passing through openings in said disks and being threaded intothe sockets in the ends of the intermediate section of the core forrigidly connecting the sections of the latter together, said diskshaving annular marginal grooves in their outer faces and the inner endof each end section of said shell extending into the adjacent coactinggroove, and means passing through the inner ends of the end sections ofsaid shell for rigidly attaching the latter to said disks, all of saidinsulator sections being provided with peripheral corrugations deningannular ribs, the end sections of said shell having drain openingsformed therein.

In testimony whereof I aix my signature.

GEORGE F. NEAL.

